What Is The Role Of DMS In Vehicle Surveillance System?

● The DMS system is a driving fatigue detection system, which detects the status of the driver during driving. The DMS system includes faceID, fatigue detection, distraction detection, expression recognition, gesture recognition, dangerous action recognition, sight tracking, etc.

● The realization of DMS is recognized by a non-wide-angle camera and a wide-angle camera in the main driver. After recognition, it is transmitted to the main control unit of fatigue detection. The main fatigue detection unit performs certain algorithm calculations through the driver's actions, and the driver detection system The driver's information is transmitted to the human-computer interaction interface for fatigue text or alarm reminders.

● DMS system detection activation requires boot state.

A. Ensure the power status of the vehicle;
B. Vehicle speed status;
C. Gear information;
D. Steering wheel angle (it will be detected during distraction detection)

● Decomposition motion detection.

A. Fatigue test
B. Distraction detection
C. Facial expression recognition
D. Dangerous motion detection
E. gesture recognition
F. Field of view tracking

● DMS technical difficulties.

A. How to define fatigue: There is a relationship between facial state and brain activity. Eyes, mouths, noses and protruding points can be extracted from the face.

B. How to measure attention: Estimate the driver`s attention on the road from the driver`s head and gaze direction.
C. Difficulties in face detection: face rotation, cosmetics, beards, glasses, etc., expressions (happy, crying), lighting and occlusion.
D. Difficulties in face tracking: loss of information from 3D mapping to 2D, partial occlusion, and light changes.

● The significance of DMS technology is not only in software-defined cars, but also in adding more black technology to cars, realizing a safe and comfortable driving environment, giving cars vitality and making cars a partner of mankind.

Complete structure of Vehicle Monitoring System:
HDD MDVR/Car Camera/DMS/ADAS/GPS etc.